622564669 has 2 divisors, whose sum is σ = 622564670. Its totient is φ = 622564668.

The previous prime is 622564601. The next prime is 622564699. The reversal of 622564669 is 966465226.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 484220025 + 138344644 = 22005^2 + 11762^2 .

It is a cyclic number.

It is not a de Polignac number, because 622564669 - 2¹¹ = 622562621 is a prime.

It is a super-2 number, since 2×622564669² = 775173534174159122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (622564699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311282334 + 311282335.

It is an arithmetic number, because the mean of its divisors is an integer number (311282335).

Almost surely, 2^622564669 is an apocalyptic number.

It is an amenable number.

622564669 is a deficient number, since it is larger than the sum of its proper divisors (1).

622564669 is an equidigital number, since it uses as much as digits as its factorization.

622564669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 46.

The square root of 622564669 is about 24951.2458406389. The cubic root of 622564669 is about 853.8760325333.

The spelling of 622564669 in words is "six hundred twenty-two million, five hundred sixty-four thousand, six hundred sixty-nine".